Has anyone tried a Breezer i3? It seems to be a Brompton clone available in the U.S.; however, the frame is hi-tensile steel and the bike weighs 32 lbs. You can read its specs at http://www.breezerbikes.com/BreezerfoldingSpec.htm . I've seen this bike for sale as cheap as $360 online; though a Curve might be a better deal but a less compact folder.